Such a rock was Christ indeed; but, in accordance with what we have said above, the prophet here has no individual specially in his view, but is rather laying down a general description of the influence of individual character, of which Christ Jesus was the highest instance. Taken in this sense, his famous words present us, _first_, with a philosophy of history, at the heart of which there is, _secondly_, a great gospel, and in the application of which there is, _thirdly_, a great ideal and duty for ourselves. 1. Isaiah gives us in this verse a PHILOSOPHY OF HISTORY. Great men are not the whole of life, but they are the condition of all the rest; if it were not for the big men, the little ones could scarcely live. The first requisites of religion and civilisation are outstanding characters. In the East the following phenomenon is often observed. Where the desert touches a river-valley or oasis, the sand is in a continual state of drift from the wind, and it is this drift which is the real cause of the barrenness of such portions of the desert at least as abut upon the fertile land. For under the rain, or by infiltration of the river, plants often spring up through the sand, and there is sometimes promise of considerable fertility. It never lasts. Down comes the periodic drift, and life is stunted or choked out. But set down a rock on the sand, and see the difference its presence makes. After a few showers, to the leeward side of this some blades will spring up; if you have patience, you will see in time a garden. How has the boulder produced this? Simply by arresting the drift. Now that is exactly how great men benefit human life. A great man serves his generation, serves the whole race, by arresting the drift. Deadly forces, blind and fatal as the desert wind, sweep down human history. In the beginning it was the dread of Nature, the cold blast which blows from every quarter on the barbarian, and might have stunted men to animals. But into some soul God breathed a great breath of freedom, and the man defied Nature. Nature has had her revenge by burying the rebel in oblivion. On the distant horizon of history we can see, merely in some old legend, the evidence of his audacity. But the drift was arrested; behind the event men took shelter, in the shelter grew free, and learned to think out what the first great resister felt. When history had left this rock behind, and the drift had again space to grow, the same thing happened; and the hero this time was Abraham. He laid his back to the practice of his forefathers, and lifting his brow to heaven, was the first to worship the One Unseen God. Abraham believed; and in the shadow of his faith, and sheltered by his example, his descendants learned to believe too. To-day from within the three great spiritual religions men look back to him as the father of the faithful.